Improvement in car-axle lubricators



T. c. HARGRAVE.

Car-Axle Box. I No. 42,578. v Patented May 3, I864. v -19 wllm w NITEDSTATES ATENT i FFIGEQ THOMAS C. HARGRAVE, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN CAR-AXLE LUBRICATORS.

To all whom it may concern.-

Be it known that I, THOMAS (J. HARGRAVE, of Boston, in the county ofSuffolk and State of Massachusetts, have invented a certain new anduseful improvement in Lubricators for Oar-'Wheels and I do herebydeclare the following to be a full, clear, and exact descriptionthereof, reference being had to the accompanying drawings, and to theletters of reference marked thereon, in which- Figure 1 is a verticalsection of the lubricator through the line y 3 Fig. 2. Fig. 2 is avertical section of the lubricator through the line .10 .r, Fig. 1.

My invention and improvement consist in the combination and arrangementof a bent spring and lubricating wheel or roller with thejournal andhousing in such a way as not to require any adjustment, and insuch a waythat the bent spring, with the lubricating wheel or roller, does notrequire to be attached or fastened to the housing, as hereinafter morefully set forth.

to is the wheel of an ordinary car.

I) is the journal or axle of the car.

0 is the lubricating wheel or roller, which is supported or carried inbearings by the bent spring cl, and is of such a size as to reach nearlyto the bottom of the journal-box, and thus secure a constant supply ofoil or other lubricating substance, the elasticity of the spring keepingthe wheel or roller 0 in contact with and slightly pressed against thelower part of the journal or axle b, said pressure being sufficient tocause the revolution of said wheel or roller, and thus secure a constanttransfer of oil or other lubricating substance to the axle. The bent or\/-shaped spring dis of such a length as to nearly fill the spacebetween the sides of thejournal-box. It is not fastened to the housingin any way, but is simply slipped into its place in the lower part ofthe journal box, one arm of the spring resting 011 the bottom or lowerplate of the box, and the friction between said spring and the bottom ofthe box is sufficient to keep the spring in place in all ordinary usesof the parts with which it is connected, the other arm of the springd,which supports or carries the lubricating wheel or roller 0, being insuch a position as to hold the said wheel or roller immediately belowthejournal, with which the said wheel or roller is kept constantly incontact by the elasticity of said bent spring d.

e is the oil or other lubricating substance.

f is the lid or door of the journalbox, by means of which admission isobtained to the inside of the journal-box for replenishing the oil orother lubricating substance when ncc' essary, and g is the housing ofthe journal-box.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is

The combination and arrangement of the bent spring d and lubricatingwheel or roller 0 with the journal b and the housing 9, substantially asand for the purpose set forth.

T. O. HARGRAVE.

Witnesses:

G. P. CURTIS, J r., J. H. FERGUSON.

